National School Admission Registers & Log-books 1870-1914 at findmypast.co.uk:
C B Minter, 8, was admitted to the Grocers' Company School, Hackney on 13 Jan 1888 and appears to have stayed there until March 1895. His father was E C Minter, a civil service clerk of 17 Salisbury Rd, Dalston.